| EPSRC Reference: |
GR/N36257/01 |
| Title: |
ROOT-CAUSE POWERTRAIN REFINEMENT FOR SUSTAINABLE HIGH POWER TO LOW WEIGHT CONSTRUCTIONS |
| Principal Investigator: |
Rahnejat, Professor H |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Mechanical Engineering |
| Organisation: |
Loughborough University |
| Scheme: |
LINK |
| Starts: |
01 February 2002 |
Ends: |
31 January 2005 |
Value (£): |
107,555
|
| EPSRC Research Topic Classifications: |
| Mech. & Fluid Power Transmiss. |
|
|
| EPSRC Industrial Sector Classifications: |
| Transport Systems and Vehicles |
|
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
Torsional rigid body motions of powertrain systems induce high frequency elasto-acoustic response of low damping elements during throttle tip-in demand from coast to drive condition and through impact dynamics in low lash rate zones. The programme of work proposes to undertake a fundamental investigation of elasto-acoustic coupling through experimental rig and in-situ vehicle studies. Novel signal processing techniques will be used for short duration transient responses (0.25-5 ms), based upon Auto-Regression Moving Average (ARMA) method. Hitherto, ARMA has not been applied to such short-lived signals. The transient gear meshing contact conditions will also be investigated, using the state-of-the-art low relaxation Effective Influence Newton-Raphson (EIN) solution for elastohydrodynamic lubricated (EHL) conjunction under combined entraining and squeeze film action. Application of EIN to transient gear meshing contacts has not been reported. The transient EHL solution will be incorporated into a multi-body elastodynamic generic and parametric powertrain model. The multi-physics combined solution is well beyond the current state-of-the-art and will be achieved by novel lower index sparse tableau formulation of decomposed nested Jacobean matrices. The experimental and numerical analyses are envisaged to result in root-cause identification and resolution of high frequency elasto-acoustic responses of powertrain systems. The model will be exploited beyond the project.EngProg\
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.lboro.ac.uk |